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Finding the Fourth Proportional to 70,059.90, 105,074.04 and 34,485.93

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Solution

The fourth proportional to 70,059.90, 105,074.04 and 34,485.93 is: 51,721.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,059.90 : 105,074.04 = 34,485.93 : x
  2. Step 2: Convert to fraction form
    70,059.90/105,074.04 = 34,485.93/x
  3. Step 3: Cross multiply
    70,059.90x = 105,074.04 × 34,485.93
  4. Step 4: Simplify right side
    70,059.90x = 3,623,575,988.26
  5. Step 5: Solve for x
    x = 3,623,575,988.26/70,059.90
  6. Step 6: Final answer
    x = 51,721.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.